The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 05, 2022
Filed:
Aug. 02, 2019
Emc Ip Holding Company Llc, Hopkinton, MA (US);
Kurumurthy Gokam, Bangalore, IN;
Venkatesh Doddamane Nagaraj, Bangalore, IN;
EMC IP Holding Company LLC, Hopkinton, MA (US);
Abstract
A host device comprises a plurality of communication adapters and is configured to communicate with a storage system. Each communication adapter comprises a plurality of input-output (IO) submission queues each having a submission queue priority class. A multi-path input-output (MPIO) driver is configured to deliver IO operations to the storage system over the network. The MPIO driver obtains an IO operation that targets a given logical volume of the storage system and determines a process tag value associated with the obtained IO operation. A mapping between the determined process tag value and a given submission queue priority class is determined and IO submission queues are identified as having the given submission queue priority class based at least in part on the mapping. A target IO submission queue is selected from the identified IO submission queues and the IO operation is dispatched to the selected target IO submission queue.